Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2023	Mar. 12, 2024	Jun. 30, 2023
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2023
Entity File Number	001-31568
Entity Registrant Name	New England Realty Associates Limited Partnership
Entity Incorporation, State or Country Code	MA
Entity Tax Identification Number	04-2619298
Entity Address, Address Line One	39 Brighton Avenue
Entity Address, City or Town	Allston
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02134
City Area Code	617
Local Phone Number	783-0039
Title of 12(b) Security	Class A
Trading Symbol	NEN
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 141,482,628
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Entity Central Index Key	0000746514
Amendment Flag	false
Auditor Name	Miller Wachman LLP
Auditor Firm ID	566
Auditor Location	Boston, MA
Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		93,853
Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		22,290